Magnetic source images of human brain functions
نویسندگان
چکیده
منابع مشابه
Electric source imaging of human brain functions.
We review recent methodological advances in electromagnetic source imaging and present EEG data from our laboratory obtained by application of these methods. There are two principal steps in our analysis of multichannel electromagnetic recordings: (i) the determination of functionally relevant time periods in the ongoing electric activity and (ii) the localization of the sources in the brain th...
متن کاملNeurophysiological architecture of functional magnetic resonance images of human brain.
We investigated large-scale systems organization of the whole human brain using functional magnetic resonance imaging (fMRI) data acquired from healthy volunteers in a no-task or 'resting' state. Images were parcellated using a prior anatomical template, yielding regional mean time series for each of 90 regions (major cortical gyri and subcortical nuclei) in each subject. Significant pairwise f...
متن کاملUsing functional magnetic resonance imaging to study human brain functions
Neuroscientists have traditionally relied on physiological and anatomical studies on experimental animals and clinicopathological studies on patients with localized brain damages to reveal the brain mechanisms of mental functions. Modern imaging techniques, however, permit us to observe non-invasively the neural activity of normal human brain. Among noninvasive measurement techniques, functiona...
متن کاملBlind Source Separation of Hemodynamics from Magnetic Resonance Perfusion Brain Images Using Independent Factor Analysis
Perfusion magnetic resonance brain imaging induces temporal signal changes on brain tissues, manifesting distinct blood-supply patterns for the profound analysis of cerebral hemodynamics. We employed independent factor analysis to blindly separate such dynamic images into different maps, that is, artery, gray matter, white matter, vein and sinus, and choroid plexus, in conjunction with correspo...
متن کاملMagnetic Resonance Angiography Source Images of Vertebral-artery Dissection
A 62-year-old man was admitted to our hospital with a brain infarction in the right medulla. On the first day, he was diagnosed with a vertebral artery dissection, based on the findings from conventional angiography, which showed an irregular stenosis associated with a pseudoaneurysm of the right vertebral artery (Picture 1). This finding on classical angiography is called the pearl and string ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Behavior Research Methods, Instruments, & Computers
سال: 1997
ISSN: 0743-3808,1532-5970
DOI: 10.3758/bf03200570